Internal-combustion engine.



1F. T. ROMBERGER. INTERNAL coMBusnoN ENGlNE. APPLICATION FILED JUNE 2-1. 191,5.

1,152,763.. "Patemedsept 7, 1915.

- I UNITED sfrarps BATENT ormoni I in -ELovD.mnoMBERGEI or ELIZABETHVILLE, PENNSYLVANIA. i

y T 'all whom '51E-maiz;y concern f Seit-.known that I, FnoYoJT. RoMBnRoi-iii, a'gcitizen'vv of the United States, residing at' 'E lLizabethVilIe, in the `county of `Dauphin and State of Pennsylvania, have invented certain new andy useful Improvements in Internal-'Combustion Engines, of which the following is a specification. I'

My invention relates'fto *type which embody rotary wives, l .f

An .important objectv of they invention is to provide means whereby the rotary'valvewill not bind, leak, or be liable to derange.

ments.

- Other objects and advantages of the vinvention will be apparent during the course of the following description.v

In the accompanying drawings forming a' part of this specilication and in which like numerals are employed to designate like parts throughout the samer lFigure V1, is a central vertical longitudinal sectional view through a valve embodying the invention, taken online 1-1 of Fig. Q, Fig. 2 is a transverse sectional view taken on line 2-2 of Fig. 1,'F ig. 3 i's a side elevation of valve-sleeve operating means, and, Fig. 4 is a side eleva'- tion of a cam and associated elements enibodied in the operating means. y

In the drawings, wherein for the purpose of illustration is shown `a preferred embodiment-of my invention, the numeral 5 desig nates the cylinders of anfinternal combustion engine, having a head or casting 6. This head or casting. is provided with laterallyspaced longitudinal bores 7, receiving tubular valves and valve-sleeves, to be described. The Ahead or casting 6 is provided with openings for vreceiving spark plugs 8, arranged as shown.

Y lEach bore 7 in the head or casting (3 is cylindrical and adapted to communicate `with the interior of the cylinders. Rotatably mounted within each bore 'i' is a thin outer valve-sleeve 9, the exterior surface of which, is cylindrical, whiler its bore is taered. This outer valve sleeve is split longitudinally throughout its Aentire length, as shown at 91, whereby' it circuinferenti'ally contractible and expansible. 1rranged within the outer valve sleeve 9 is an inner valve sleeve 10, having a longitudinally tapered exterior surface while its bore is cylindrical. This inner 'valve sleeve is yalsothin and split longitudinally throughout its entire length,

improvements in .internal combustion engines of the general i INTERNAL-coifrrrsrroi marraine'.Y

Specification f Letteraleteiit.l i `Patentfl Application ined June 21,1915. seriaino. 35,377.1'

as shown at 10 1, whereby it is `circumfer ential'ly expansible and contractible. yThe splits orf-openings 91 and 1()1 arearranged tov permanentlybreakij oint,l` wherebyv all leali. age is prevented. v Surrounding the opposite en ds 'of these valve-sleeves `arel compressiible coil springs 11, contacting with flanges v111 carried-'by the valve-sleeves, to move ythem inwardly in opposite directions, whereby 'their beveled contacting faces have proper engagement.

within each inner Rotatabl'y mounted valve-sleeve 10 is a cylindrical tubular valve manently in registration, as thel valve-sleeves 1 are not turned sufficiently with relation to each other to cause these ports to be moved completely out of registration. l v

Means are vprovided toflight'ly turn'tlie valveisleeves` 9 and 1.0, comprising cranks lo, which are secured -to the ends ofthe valve-sleeves, projecting outwardly beyond' the ends of the head or casing 6. Pivotally connected with each crank 15 is a pitman 16, extending downwardly for pivotal connection with an eccentric strap 17, slidably mounted upon an eccentric 1S, in turn mounted upon a shaft 19, This shaft may be the crank-shaft of the engine, or a shaft driven by it.

The tubular valveA receives its rotation from a sprocket wheel 20, mounted thereon, and engaged by a sprocket chain 21, engagv ing a sprocket wheel 2Q. This sprocket wheel is rigidly mounted upon the shaft 1f). Having a swiveled connection with the opposite end of each tubular valve is a pipe 23, adapted to serve as an inlet or exhaust pipe.

In Fig. Q, I have shown the engine as einbodying two tubular valves, one of which is an inlet valve and the other an exhaust valve. Instead of employing two of these valves it is obvious that by properly arranging the ports therein, a single valve may be.,

valve-sleeves. The-pressnre. of the springs' 11 upon the 'flanges '111, move they valvesleeves inwardly longitudinally, and by "irtue offtheir tapered contactlng vfaces, thev -inner valve-sleeveis contractedto properly slidably contact with the tubularvalve for' preventing leaks and the like, .while the outer tubular valve-sleeve is expanded to properly Contact with the wall of the bore preventing leakage. ,In order that these circumferentially expansible valve-'sleeves may not bind or freeze, whereby they could not properlyoperate, such valve-'sleeves arey slightly turned'back and forth, 4during the operation of the engine. Such action is ef"- 'fected /by the'vcams and associated elesorted to without departing from the spirit ofthe invention or the scope ofthe subv joined claims.

Having thus described theinvention, -I claim: I

. -1. The Icombination .with an enginehaving a valve casing, of a: rotatable valve ar ranged within the valve casing, a pair of telescopxng valve-sleeves between v *am valve' casing' ma" a van mpg lmeans to move onevalve-Bll.

tapered contacting nally in one direction. f. vThe combination with Il *lbfing a valve casing, of a rotatlbk vll it ranged within the valve casing, l4 pli Il telescoping. valve-sleeves m the valve casing and the valve' a tapered contacting surfaces, yielding n vto move the valve-sleeves inwardly tudinally, and means to cifeot l turning movement between th'evalve-llvel;

3. The combination with an' engine' hlv 5.1 .a-valvecasing, of a rotatablefva'lve'amn' f within the valve casing, a pair' of teleneting longitudinally split circumferentially 03 pansible and contractible valve-sleeves .dii-

posed between the valvecasing andvalt and having tapered contacting* surface., yielding means to move one valve-sleeve lolgitudinally with relation to the other, and

means to eflecta relative turning movement between the valve sleeves. y Y

In testimony whereof I aiiixV my signatlu! in presence of two witnesses.

FLOYD T. ROMBERGER, M. D.

Witnesses:

4l. S. DANIEL, Rar K. Burnxmox. 

